The generator shall be run without load for 30 minutes , to record the phase current , volt , frequency , stator and bearing temperature once at intervals of 10 minutes 电机应空载试运行2小时,每隔30分钟记录一次相电流、绕组和轴承温度。
The input of fnn is flux linkage and phase current , the output of fnn is rotor position . the fnn is trained off line with the genetic algorithm 网络采用离线的方式学习,为了满足系统的实时性要求,网络的离线学习和在线运行都采用遗传算法对网络的参数进行调整。
Generally , single phase grounding fault can cause both high phase current and zero sequence current . proper grounding protection set can act reliably and cut off fault 一般地,单相短路将产生很大的故障相电流和零序电流,相应的接地保护装置将能可靠动作从而将故障切除。
The device has considered its practical functions , which include chinese character parameter , waveform display for three - phase current , fixed value and retain of failure information 装置考虑了实用功能设计。具有汉字参数、三相电流波形显示,整定值、故障信息的保留等功能。
Based on classical phase voltage model , a line voltage model is derived and then the phase current model is obtained . beside , the solution for this novel mathematical model is also given 本文基于经典的相电压模型,导出线电压模型,然后推出相电流模型,并给出相电流模型解的表达式。
The speed - independent position function of the rotor was given by analyzing the phase current and phase voltage of the permenent magnet brushless dc motor , using the powerful operation function of dsp 利用dsp的强大运算功能,通过分析永磁无刷直流电动机的相电压与相电流给出转子速度无关位置函数。
This paper gives the fundamental equation of electric circuit of switched reluctance generator ( srg ) . the phase flux linkage , indutance and phase current of srg are discussed based on unsaturated magnetic circuit 给出了开关磁阻无刷发电机的相电路基本方程,分析了基于不饱和磁路条件的相磁链、相电感和相电流。
Based on analysis and contrast of the whole operating process from driving to reverse connect braking and regenerative braking for pmdcm , reverse connect braking has some characteristics of great phase currents and not returning energy 摘要对永磁无刷直流电动机从电动运行过渡到反接制动或回馈制动运行的整个过程进行了计算和比较。
Railway applications - fixed installations - particular requirements for a . c . switchgear - part 3 - 2 : measurement , control and protection devices for specific use in a . c . traction systems - single phase current transformers 铁路设施.固定装置.交流开关装置的特殊要求.第3 - 2部分:交流电牵引系统专用的测量控制和保护设备.单相电流互感器
Railway applications - fixed installations - particular requirements for a . c . switchgear - measurement , control and protection devices for specific use in a . c . traction systems - single - phase current transformers - single - phase current transformers 铁路设施.固定装置.交流电开关的专门要求.交流牵引系统特殊使用的测量控制和保护装置.单相电流变压器